Sidewalk door



il r3, HCJLTE; I WLV 'SIDEWALK DOOR Filed March 9, 1928 I N VEN TOR.

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@HABILES HLTZ, 0F MILWAUKEE, WISCONSIN, l 02E' MILWAUKEE, WISCONSIN, ACORPORATION OF WISCONSHL ASSIGNOR 'IUl C. HENNECIE COMPAN'll',

SIDEWLK JDOGR.

Application filed March 9,

rlhis invention relates vlto improvements in sidewalk doors. A

lit has been common practice heretofore to construct sidewalk doors insuch a manner that, when in open positiom'the inner edge oi each doorwould be received by a longitudinal recess in the door frame. aturally,in the winter time, snow and ice would :ac` cumulate in these recessesand render it diilicult or impossible, without iirst dislodging andremoving the ice, to open the doors. j

lit is one of the objects ofthis invention to overcometheabove-mentioned objection, and to provide sidewalk'd'oors in whichthe hinge edges of the doors will swing clear ot" the frame, renderingitunnecessary to have the objectionable recesses.

llt is a further object of this invention to provide sidewalk doors allparts of which will'be Hushv with the Walk. I

lt .is a further object of this invention to provide sidewalk doorshaving means for carrying ed all rain water which may leak through thecrevices between the doors, or between the doors and the frame.

'llt is a further object of this invention to provide sidewalk doors inwhich a means 1s employed for supporting the doors. centrally, toeliminate the possibility of theirsagglng when subjected to weight fromabove.`

.lt is a further object ofthis invention toi provide sidewalk doors inwhich a novel form of hinge construction is employed.

llt is a further object of this invention to are 'simple in constructionand well -pose described.- i

llith the above and otherobjects in View, the invention consists of theimproved sidewalk doors and all their parts and combinations asset-iiortlr in the claims and all` equivalents thereof. l

lin the accompanying drawing, in which the same reference charactersdesignate the saine parts in all of the views:

lbig. 1 is a cross sectional view of the doors in the closed position,fragmentary parts oit the walk being shown;

lhig. 2 is a similar in the open position;

Fig. 3 is a fragmentary plan view of the closed doors, parts being partsbeing shown in section; and

Fig. e is a 'fragmentary bottom View thereof.

4ing communicating the closedl position.

end

Viewl showing the doors The links 23 are formed with recesses 25 tobroken away and ieee. serial No. 260,519.

` Referring to the drawing, the numeral 8 designates portions of thesidewalk which are recessed at 9 to receive arectangular frame. 'Thelatter comprises four channel bars 10 having mitered corners welded orotherwise secured together. 'lhese channel bars form a4 gutter to carryoft rain water and are provided at one side with an open with a tubularextension 11 to which a drain pipe may be connected. Four angle bars 12also form part of the frame, and each angle bar has one side secured tothe outer edge ot a channel bar, the other side overlapping the open topof the channel. Hinge openings 13 arel provided in two oppositeI anglebars, and within these openings are biturcated stationary hinge members14, the top of which are flush with the angle bars. i j

1 Hinge extensions 15, pivoted betweenthe bilurcated portions ofthestationary hinge members on pins 16, are secured to the lower surfaceofthe doors 17. The outer ends oi the hinge extensions are flush withthe upper surface ofthe doors, so that when thelatter are closed thereare no projections above the walk.

The outer edge of one of the doors has a channel bar 18 extendingtherealong, and projecting therefrom.V 'This forms a gutter to receiveany'water which may leak through the crack between the two doors when inj As the channel communicates with the main gutter 10, the water will betaken Vcare of vWithout allowing it to go intoI the basement below.Recesses 19 1n two 'ofthe opposite channel bars 10 aecommodate the endsof the channel 18 when the doors are closed, and recesses 19 in theother `two channel bars receive the hinge extenslons 15.

A reinforcing frame 20. is secured to the inner side of each door and toa portion of each frame a link 21, having a pin 22 projectinglnear itsouter end, is pivotally connected. vPivoted at one 'end to anintermediate portion of eachi of these links is a second link 23. Eachof the links 23 has its other pivoted to the adjacent channel bar 10.

receive the pins 22 when the doors are opened, 4thereby locking thedoors in the raised position.

A bolt 26 slidable inperforations 27 oi a bracket 28 'is adapted toengage beneath the door frame tolock the doors when shut. On the top ofone of the doors a handle 29 is pivotally connected, and it is adaptedto lie in a recess 30 when not being used.

This novel formy of construction provides 'sidewalk doors in which allparts are flush -with the .walk whenin the `closed position, as' mayreadily be s een in Figs. l and 3.

' .I embodying a pair o f doors,

. to. be limited to a plurality,

Furthermore, the inner edges of the doors, when raised, swingclear ofthe frame, obviating the necessity of havingrecesses to accommodate them'as illustrated in Fig. 2. The disposal of rain water is yalso wellprovided or by the gutters 10 and 18. A- fui'- l'ther novel feature isthe reinforced door construction,V as the frames 20 adequatelystrengthen each door, and. the channel I8, in addition to serving as agutter, acts to reinforce the doors centrally when closed, to

revent them'from sagging.

Althoughthe device has been described as it is not desired concept ofthe invention also contemplates its use in a -construction comprisingonedoor only.l l f `From the foregoing description, it' may be seen thatthe improved sidewalk doors are simple in construction, and Well adaptedfor the purpose described.

What I claim is: n

1. A sidewalk door construction compris'- ingfour channel bars'connected at their ends to form a rectangle, an angle bar for eachchannel,.one side of each angle`bar being connected to the outer side ofits respective channel bar and the other side overlapping h the open topof the channel bar, thel overlapping sides of two oppositely positionedangle bars having recesses therein, a hinge member vmounted' on thechannel barbelow each of said recesses, the top of each of said hingemembers being flush with the upper' surface of ,the angle bars, a pairof doors,

hinge members extending 'from the inner -edgesof said doors, and pivotalmeans connecting said hinge members with the frame the channelbar\within each of said recesses,

the top of each of said hinge members being flush with the upper surfaceof the angle bars', a pair 'of doors, hinge members lextending from theinner edges of said doors, and pivotal means connecting said hingemembers with the frame hinge members.

In testimony whereof, I aiiix my signature.

CHARLES HoLTz

